Portable Telephone with Detachable Earphone and Microphone Modules

1. A portable telephone for conducting wireless telephonic communications, comprising: a main body; a detachable member, which comprises an earphone module, a microphone module and a rolling member, the rolling member connecting the earphone module and the microphone module together so that the earphone and microphone modules can rotatably separate from each other and rotatably couple with each other; a spring biased spool mounted within the main body; and a data transmission cable extending from the detachable member, the data transmission cable being housed within the main body when it is in a retracted position; wherein two opposite ends of the data transmission cable respectively connect with the detachable member and the spring biased spool, and the spring biased spool enables the data transmission cable to be extended or retracted so that the detachable member can be detached from or attached to the main body.

2. The portable telephone claimed in claim 1 , wherein the rolling member is a gear module.

3. The portable telephone claimed in claim 2 , wherein the gear module comprises two gears having a same structure, and the gears are mounted on the earphone module and the microphone module respectively.

4. The portable telephone claimed in claim 3 , wherein each gear defines a recess through which the data transmission cable passes to electrically connect the earphone module end the microphone module to circuitry in the main body.

5. The portable telephone claimed in claim 3 , wherein the gear module further comprises a frame, and ends of the earphone module and the microphone module having the gears are contained in the frame.

6. The portable telephone claimed in claim 5 , wherein the frame comprises a base wall, a left wall, a right wall, a top wall and a bottom wall, said walls cooperatively defining a cavity therebetween.

7. The portable telephone claimed in claim 6 , wherein said ends of the earphone and microphone modules having the gears are located in the cavity.

8. The portable telephone claimed in claim 7 , wherein the left wall and the right wall are longer than the top wall and the bottom wall.

9. The portable telephone claimed in claim 8 , wherein ends of the left wall and the right wall exceeding the top and bottom walls each define a pair of pivot holes therein.

10. The portable telephone claimed in claim 8 , wherein a stopping pole is provided in the cavity of the frame between the earphone module and the microphone module, with opposite ends of the stopping pole respectively connecting with the left wall and the right wall of the frame.

11. The portable telephone claimed in claim 9 , wherein the earphone module comprises a tube retaining an earphone, and an earphone cable passes through the tube to electrically connect the earphone to circuitry in the main body.

12. The portable telephone claimed in claim 11 , wherein the microphone module comprises a tube for retaining a microphone, and a microphone cable passes through the tube to electrically connect the microphone to circuitry in the main body.

13. The portable telephone claimed in claim 12 , wherein each of the tubes comprises two opposite pivot pins pivotably received in the pivot holes of the frame.

14. The portable telephone claimed in claim 12 , wherein the gears are mounted on ends of the tubes located in the cavity, such that the gears enable the earphone module to be coupled with or separated from the microphone module.

15. The portable telephone claimed in claim 6 , wherein the detachable member further comprises a video camera module.

16. The portable telephone claimed in claim 15 , wherein the video camera module is mounted in the frame of the detachable member.

17. The portable telephone claimed in claim 16 , wherein the base wall of the frame defines a hole, and the video camera module is housed in the hole.

18. The portable telephone claimed in claim 17 , wherein an access hole is defined in the bottom wall of the frame, and the data transmission cable passes through the access hole and electrically connects to the earphone module, the microphone module and the video camera module.